Base Station Identifier Switching for Private Network Separation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The process of building a private network using conventional RAN sharing is complicated, and ensuring physical or logical separation between public and private networks is necessary.
Innovation Solution
A base station device that adds or deletes local identifiers to/from a system information list based on control information from a control device, allowing flexible construction and release of private networks, with support for wireless backhaul connections and localized core networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional RAN sharing is used to build a private network, then the private network can be operated, but the process becomes complicated
Solution Approach 1:
The patent segments the network identification process by introducing separate identifier lists (PLMN-ID list and NPN-ID list) for public and private networks. The base station maintains both lists independently and notifies terminals of available networks through system information, allowing simplified private network deployment without complex RAN sharing procedures.
2Reliability
If physical or logical separation between public and private networks is ensured, then security is improved, but network configuration complexity increases
Solution Approach 1:
The patent extracts the private network identification from the public network PLMN-ID list and creates a separate NPN-ID list. This separation allows independent management of public and private network identifiers, ensuring logical isolation while simplifying configuration through unified base station control.
Solution Approach 2:
The base station acts as an intermediary that manages both public and private network identifier lists. It receives control information from control devices, updates the identifier lists accordingly, and notifies terminals of available networks, thereby simplifying the configuration process while maintaining security through centralized control.
3Adaptability or versatility
If dynamic addition and deletion of identifiers is implemented, then network flexibility is improved, but control mechanism complexity increases
Solution Approach 1:
The patent implements a feedback mechanism where the base station receives control information from control devices regarding identifier additions or deletions, updates its internal identifier lists accordingly, and re-notifies terminals through system information. This automated feedback loop enables dynamic network reconfiguration without manual intervention, improving flexibility while keeping control mechanisms simple.
Data Source
AI summary
A private network is flexibly built while ensuring physical or logical separation from a public network. A base station device notifies system information including a first identifier corresponding to a communication network (for example, PLMN) in an identifier list. In that state, a second identifier used locally is added to the identifier list of the system information according to control information from a control device. Thereafter, notification of the system information including the first and second identifiers in the identifier list is started. Therefore, the private network is built.